Clarification.

draft-mcnally-envelope.md

@@ -227,7 +227,7 @@ In this section:
 *  The `.digest` attribute is the digest of the named element computed as specified herein.
 *  The `||` operator represents the concatenation of byte sequences.
 
-Note that in the examples below, all the hexadecimal you see is converted to binary before being hashed. This is to make the examples easier to read. In practice, the hash function is applied directly to the binary data.
+Note that in the examples below, hexadecimal is shown for readability. All the hexadecimal you see is converted to binary before being hashed.
 
 ## Leaf Digest Calculation